Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

When it is alive we sing, when it is dead we clap our hands. What is it?

Which is the smallest number that you can write using all the vowels exactly once?

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..

They are three errirs in this question. Can you find them?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

Nodes are shown below and you need to connect them based on the following rule: Every node can be connected to the number of nodes inside them, i.e. the first node there is a value of 1 which indicates that the first node can connect to exactly one node only.Can you do it?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?